Chapter 6: BIOS
83
PassThrough DMA
Select Enable for the Non-Iscoh VT-d engine to pass through DMA (Direct Memory Access)
to enhance system performance. The options are
Enable
and Disable.
ATS
Select Enable to enable ATS (Address Translation Services) support for the Non-Iscoh VT-d
engine to enhance system performance. The options are
Enable
and Disable.
Posted Interrupt
Select Enable to support VT_D Posted Interrupt which will allow external interrupts to be
sent directly from a direct-assigned device to a client machine in non-root mode to improve
virtualization efficiency by simplifying interrupt migration and lessening the need of physical
interrupts. The options are
Enable
and Disable.
Coherency Support (Non-Isoch)
Select Enable for the Non-Iscoh VT-d engine to pass through DMA (Direct Memory Access)
to enhance system performance. The options are
Enable
and Disable.
Intel VMD Technology
Intel VMD for Onboard NVMe
VMD Configuration Onboard NVMe\
Onboard NVMe Mode
Select Legacy Mode for the onboard NVMe devices to support Legacy Mode. The options
are
Legacy Mode
and the VMD Mode.
IIO-PCIE Express Global Options
The section allows the user to configure the following PCI-E global options:
PCE-E Hot Plug
Select Enable to support Hot-plugging for the selected PCI-E slots which will allow the user
to replace the devices installed in the slots without shutting down the system. The options
are
Enable
and Disabled.
PCI-E Completion Timeout (Global)
Use this item to select the PCI-E Completion Time-out settings. The options are
Yes
, No,
and Per-Port.
